"It helps when a brand puts itself out there in a human and personal way with character," Twitter co-founder Jack Dorsey told The Times. "Often brands are dehumanized a bit and you forget who's behind it."

The Snyder sisters have also harnessed the power of the hashtag. For example, adding the hashtag #armparty to images of mismatched arm bracelets helped their online bracelet business gain more traction, the sisters told The Times.

Another hashtag, #putabibonit, has increased their online bib sales by 20 percent, the Snyder sisters say.

"There are aspects of our business that have put Dannijo more in the public eye, and being into social media is one of them," Jodie said. "But we attribute a lot of our success to being young and open-minded and being part of a changing landscape of marketing and brand building."